"Investigators at the scene found drug paraphernalia, including a spoon with drug residue and a used hypodermic needle, along with two empty champagne bottles and glasses," Wednesday's news release stated. "The investigation confirmed that hotel video captured Mr. Monteith returning alone to his room at 2:16 a.m. on July 13, and that he was not seen alive again.

"It was also confirmed that he had a history of illicit drug use with intermittent periods of rehabilitation and of abstinence from drugs. It is noted that if someone has abstained from using opioids (which include heroin) for a period of time, tolerance may be lessened," the release said.

Before becoming an actor, Monteith worked as a Wal-Mart people greeter in Nanaimo, B.C., as well as a taxi driver, school bus driver, and roofer, the Canadian Press reported.

He was also a drummer for the California-based band Bonnie Dune, and was an avid supporter of the Project Limelight Society, a Vancouver charity that offers a theatre program to at-risk youth.

His big break came in 2009 when he landed the Finn Hudson role on "Glee."

One of the final roles filmed by Monteith before his death screened at VIFF last week.

"All The Wrong Reasons" stars the late actor as a regional manager of a department store going through marriage problems.